Russ:
I am not an editor: I only play one on TV! 😁
The OP seems to want editing capabilities at a bargain price. Maybe FCE 3.5 can be obtained at a price he can afford; maybe not...
Here is a recent post I assembled about installing FCP6 in El Capitan:
Apple has created a "bug" in the attempt to install FCP6 in Lion, Mt. Lion, Mavericks, Yosemite and El Capitan, which makes it look like Rosetta is needed for a PowerPC app, the installer, so as to make it difficult for the use of FCP6 in these versions of OS X! There are three ways to install it:
1. Pacifist https://www.charlessoft.com/
2. Jeremy Johnstone's Terminal method http://www.jeremyjohnstone.com/blog/2012-03-11-installing-final-cut-pro-studio-2 -0-on-mac-os-x-10-7-lion.html
3. HawaiianHippie has discovered the best and safest possible solution to this problem:
https://discussions.apple.com/thread/5591321?answerId=26309669022#26309669022&ac_cid=tw123456#26309669
I have now successfully done this on four computers, brand new iMacs running 10.9.4. And I've discovered an even easier way to do this! You don't need to edit the plist file, just move it into the Trash. Install proceeds normally. You can return it after you're done if you like, I don't know what (if any) possible repercussions might come from leaving it deleted.
The file, as indicated on Jeremy Johnstone's blog, is
/System/Library/CoreServices/Installer.app/Contents/Resources/PPCRequirements.pl ist
(Note that when you get to Installer.app, you will have to Control+click and select "Show Package Contents")
I have successfully duplicated the HawaiianHippie method on Yosemite and, after turning off Gatekeeper and SIP, it also works in El Capitan (and then after full installation and upgrade of FCP6, be sure to turn these security features back on).